Brake disc for bicycles



FIG. 1 is a perspective view of a brake disc for bicycles, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side view thereof, being the left side view with respect to FIG. 2;

FIG. 4 is a side view thereof, being the right side view with respect to FIG. 2;

FIG. 5 is a side view thereof, being a side view from the top with respect to FIG. 2;

FIG. 6 is a side view thereof, being a side view from the bottom with respect to FIG. 2; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a brake disc for bicycles, as shown and described. 